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-rw-r--r--BSF/admin/include/plugins.class.php484
1 files changed, 484 insertions, 0 deletions
diff --git a/BSF/admin/include/plugins.class.php b/BSF/admin/include/plugins.class.php
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+++ b/BSF/admin/include/plugins.class.php
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+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based picture gallery |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008 Piwigo Team http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify |
+// | it under the terms of the GNU General Public License as published by |
+// | the Free Software Foundation |
+// | |
+// | This program is distributed in the hope that it will be useful, but |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
+// | General Public License for more details. |
+// | |
+// | You should have received a copy of the GNU General Public License |
+// | along with this program; if not, write to the Free Software |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA. |
+// +-----------------------------------------------------------------------+
+
+class plugins
+{
+ var $fs_plugins = array();
+ var $db_plugins_by_id = array();
+ var $server_plugins;
+
+ /**
+ * Initialize $fs_plugins and $db_plugins_by_id
+ */
+ function plugins()
+ {
+ $this->get_fs_plugins();
+
+ foreach (get_db_plugins() as $db_plugin)
+ {
+ $this->db_plugins_by_id[$db_plugin['id']] = $db_plugin;
+ }
+ }
+
+ /**
+ * Perform requested actions
+ * @param string - action
+ * @param string - plugin id
+ * @param array - errors
+ */
+ function perform_action($action, $plugin_id)
+ {
+ if (isset($this->db_plugins_by_id[$plugin_id]))
+ {
+ $crt_db_plugin = $this->db_plugins_by_id[$plugin_id];
+ }
+ $file_to_include = PHPWG_PLUGINS_PATH . $plugin_id . '/maintain.inc.php';
+
+ $errors = array();
+
+ switch ($action)
+ {
+ case 'install':
+ if (!empty($crt_db_plugin))
+ {
+ array_push($errors, 'CANNOT INSTALL - ALREADY INSTALLED');
+ break;
+ }
+ if (!isset($this->fs_plugins[$plugin_id]))
+ {
+ array_push($errors, 'CANNOT INSTALL - NO SUCH PLUGIN');
+ break;
+ }
+ if (file_exists($file_to_include))
+ {
+ include_once($file_to_include);
+ if (function_exists('plugin_install'))
+ {
+ plugin_install($plugin_id, $this->fs_plugins[$plugin_id]['version'], $errors);
+ }
+ }
+ if (empty($errors))
+ {
+ $query = '
+INSERT INTO ' . PLUGINS_TABLE . ' (id,version) VALUES ("'
+. $plugin_id . '","' . $this->fs_plugins[$plugin_id]['version'] . '"
+)';
+ pwg_query($query);
+ }
+ break;
+
+ case 'activate':
+ if (!isset($crt_db_plugin))
+ {
+ array_push($errors, 'CANNOT ACTIVATE - NOT INSTALLED');
+ break;
+ }
+ if ($crt_db_plugin['state'] != 'inactive')
+ {
+ array_push($errors, 'invalid current state ' . $crt_db_plugin['state']);
+ break;
+ }
+ if (file_exists($file_to_include))
+ {
+ include_once($file_to_include);
+ if (function_exists('plugin_activate'))
+ {
+ plugin_activate($plugin_id, $crt_db_plugin['version'], $errors);
+ }
+ }
+ if (empty($errors))
+ {
+ $query = '
+UPDATE ' . PLUGINS_TABLE . ' SET state="active" WHERE id="' . $plugin_id . '"';
+ pwg_query($query);
+ }
+ break;
+
+ case 'deactivate':
+ if (!isset($crt_db_plugin))
+ {
+ die ('CANNOT DEACTIVATE - NOT INSTALLED');
+ }
+ if ($crt_db_plugin['state'] != 'active')
+ {
+ die('invalid current state ' . $crt_db_plugin['state']);
+ }
+ $query = '
+UPDATE ' . PLUGINS_TABLE . ' SET state="inactive" WHERE id="' . $plugin_id . '"';
+ pwg_query($query);
+ if (file_exists($file_to_include))
+ {
+ include_once($file_to_include);
+ if (function_exists('plugin_deactivate'))
+ {
+ plugin_deactivate($plugin_id);
+ }
+ }
+ break;
+
+ case 'uninstall':
+ if (!isset($crt_db_plugin))
+ {
+ die ('CANNOT UNINSTALL - NOT INSTALLED');
+ }
+ $query = '
+DELETE FROM ' . PLUGINS_TABLE . ' WHERE id="' . $plugin_id . '"';
+ pwg_query($query);
+ if (file_exists($file_to_include))
+ {
+ include_once($file_to_include);
+ if (function_exists('plugin_uninstall'))
+ {
+ plugin_uninstall($plugin_id);
+ }
+ }
+ break;
+
+ case 'delete':
+ if (!empty($crt_db_plugin))
+ {
+ array_push($errors, 'CANNOT DELETE - PLUGIN IS INSTALLED');
+ break;
+ }
+ if (!isset($this->fs_plugins[$plugin_id]))
+ {
+ array_push($errors, 'CANNOT DELETE - NO SUCH PLUGIN');
+ break;
+ }
+ if (!$this->deltree(PHPWG_PLUGINS_PATH . $plugin_id))
+ {
+ $this->send_to_trash(PHPWG_PLUGINS_PATH . $plugin_id);
+ }
+ break;
+ }
+ return $errors;
+ }
+
+ /**
+ * Get plugins defined in the plugin directory
+ */
+ function get_fs_plugins()
+ {
+ $dir = opendir(PHPWG_PLUGINS_PATH);
+ while ($file = readdir($dir))
+ {
+ if ($file!='.' and $file!='..')
+ {
+ $path = PHPWG_PLUGINS_PATH.$file;
+ if (is_dir($path) and !is_link($path)
+ and preg_match('/^[a-zA-Z0-9-_]+$/', $file )
+ and file_exists($path.'/main.inc.php')
+ )
+ {
+ $plugin = array(
+ 'name'=>$file,
+ 'version'=>'0',
+ 'uri'=>'',
+ 'description'=>'',
+ 'author'=>'',
+ );
+ $plg_data = implode( '', file($path.'/main.inc.php') );
+
+ if ( preg_match("|Plugin Name: (.*)|", $plg_data, $val) )
+ {
+ $plugin['name'] = trim( $val[1] );
+ }
+ if (preg_match("|Version: (.*)|", $plg_data, $val))
+ {
+ $plugin['version'] = trim($val[1]);
+ }
+ if ( preg_match("|Plugin URI: (.*)|", $plg_data, $val) )
+ {
+ $plugin['uri'] = trim($val[1]);
+ }
+ if ( preg_match("|Description: (.*)|", $plg_data, $val) )
+ {
+ $plugin['description'] = trim($val[1]);
+ }
+ if ( preg_match("|Author: (.*)|", $plg_data, $val) )
+ {
+ $plugin['author'] = trim($val[1]);
+ }
+ if ( preg_match("|Author URI: (.*)|", $plg_data, $val) )
+ {
+ $plugin['author uri'] = trim($val[1]);
+ }
+ if (!empty($plugin['uri']) and strpos($plugin['uri'] , 'extension_view.php?eid='))
+ {
+ list( , $extension) = explode('extension_view.php?eid=', $plugin['uri']);
+ if (is_numeric($extension)) $plugin['extension'] = $extension;
+ }
+ // IMPORTANT SECURITY !
+ $plugin = array_map('htmlspecialchars', $plugin);
+ $this->fs_plugins[$file] = $plugin;
+ }
+ }
+ }
+ closedir($dir);
+ }
+
+ /**
+ * Sort fs_plugins
+ */
+ function sort_fs_plugins($order='name')
+ {
+ switch ($order)
+ {
+ case 'name':
+ uasort($this->fs_plugins, 'name_compare');
+ break;
+ case 'status':
+ $this->sort_plugins_by_state();
+ break;
+ case 'author':
+ uasort($this->fs_plugins, array($this, 'plugin_author_compare'));
+ break;
+ case 'id':
+ uksort($this->fs_plugins, 'strcasecmp');
+ break;
+ }
+ }
+
+ /**
+ * Retrieve PEM server datas to $server_plugins
+ */
+ function get_server_plugins($new=false)
+ {
+ foreach($this->fs_plugins as $fs_plugin)
+ {
+ if (isset($fs_plugin['extension']))
+ {
+ $plugins_to_check[] = $fs_plugin['extension'];
+ }
+ }
+ $url = PEM_URL . '/uptodate.php?version=' . rawurlencode(PHPWG_VERSION) . '&extensions=' . implode(',', $plugins_to_check);
+ $url .= $new ? '&newext=Plugin' : '';
+
+ if (!empty($plugins_to_check) and $source = @file_get_contents($url))
+ {
+ $this->server_plugins = @unserialize($source);
+ }
+ }
+
+ /**
+ * Sort $server_plugins
+ */
+ function sort_server_plugins($order='date')
+ {
+ switch ($order)
+ {
+ case 'date':
+ krsort($this->server_plugins);
+ break;
+ case 'revision':
+ usort($this->server_plugins, array($this, 'extension_revision_compare'));
+ break;
+ case 'name':
+ uasort($this->server_plugins, array($this, 'extension_name_compare'));
+ break;
+ case 'author':
+ uasort($this->server_plugins, array($this, 'extension_author_compare'));
+ break;
+ }
+ }
+
+ /**
+ * Extract plugin files from archive
+ * @param string - install or upgrade
+ * @param string - archive URL
+ * @param string - destination path
+ */
+ function extract_plugin_files($action, $source, $dest)
+ {
+ if ($archive = tempnam( PHPWG_PLUGINS_PATH, 'zip'))
+ {
+ if (@copy(PEM_URL . str_replace(' ', '%20', $source), $archive))
+ {
+ include(PHPWG_ROOT_PATH.'admin/include/pclzip.lib.php');
+ $zip = new PclZip($archive);
+ if ($list = $zip->listContent())
+ {
+ foreach ($list as $file)
+ {
+ // we search main.inc.php in archive
+ if (basename($file['filename']) == 'main.inc.php'
+ and (!isset($main_filepath)
+ or strlen($file['filename']) < strlen($main_filepath)))
+ {
+ $main_filepath = $file['filename'];
+ }
+ }
+ if (isset($main_filepath))
+ {
+ $root = dirname($main_filepath); // main.inc.php path in archive
+ if ($action == 'upgrade')
+ {
+ $extract_path = PHPWG_PLUGINS_PATH.$dest;
+ }
+ else
+ {
+ $extract_path = PHPWG_PLUGINS_PATH
+ . ($root == '.' ? 'extension_' . $dest : basename($root));
+ }
+ if($result = $zip->extract(PCLZIP_OPT_PATH, $extract_path,
+ PCLZIP_OPT_REMOVE_PATH, $root,
+ PCLZIP_OPT_REPLACE_NEWER))
+ {
+ foreach ($result as $file)
+ {
+ if ($file['stored_filename'] == $main_filepath)
+ {
+ $status = $file['status'];
+ break;
+ }
+ }
+ }
+ else $status = 'extract_error';
+ }
+ else $status = 'archive_error';
+ }
+ else $status = 'archive_error';
+ }
+ else $status = 'dl_archive_error';
+ }
+ else $status = 'temp_path_error';
+
+ @unlink($archive);
+ return $status;
+ }
+
+ /**
+ * delete $path directory
+ * @param string - path
+ */
+ function deltree($path)
+ {
+ if (is_dir($path))
+ {
+ $fh = opendir($path);
+ while ($file = readdir($fh))
+ {
+ if ($file != '.' and $file != '..')
+ {
+ $pathfile = $path . '/' . $file;
+ if (is_dir($pathfile))
+ {
+ $this->deltree($pathfile);
+ }
+ else
+ {
+ @unlink($pathfile);
+ }
+ }
+ }
+ closedir($fh);
+ return @rmdir($path);
+ }
+ }
+
+ /**
+ * send $path to trash directory
+ * @param string - path
+ */
+ function send_to_trash($path)
+ {
+ $trash_path = PHPWG_PLUGINS_PATH . 'trash';
+ if (!is_dir($trash_path))
+ {
+ @mkdir($trash_path);
+ $file = @fopen($trash_path . '/.htaccess', 'w');
+ @fwrite($file, 'deny from all');
+ @fclose($file);
+ }
+ while ($r = $trash_path . '/' . md5(uniqid(rand(), true)))
+ {
+ if (!is_dir($r))
+ {
+ @rename($path, $r);
+ break;
+ }
+ }
+ }
+
+ /**
+ * Sort functions
+ */
+ function plugin_version_compare($a, $b)
+ {
+ $pattern = array('/([a-z])/ei', '/\.+/', '/\.\Z|\A\./');
+ $replacement = array( "'.'.intval('\\1', 36).'.'", '.', '');
+
+ $array = preg_replace($pattern, $replacement, array($a['version'], $b['version']));
+
+ return version_compare($array[0], $array[1], '>=');
+ }
+
+ function extension_revision_compare($a, $b)
+ {
+ if ($a['date'] < $b['date']) return 1;
+ else return -1;
+ }
+
+ function extension_name_compare($a, $b)
+ {
+ return strcmp(strtolower($a['ext_name']), strtolower($b['ext_name']));
+ }
+
+ function extension_author_compare($a, $b)
+ {
+ $r = strcasecmp($a['author'], $b['author']);
+ if ($r == 0) return $this->extension_name_compare($a, $b);
+ else return $r;
+ }
+
+ function plugin_author_compare($a, $b)
+ {
+ $r = strcasecmp($a['author'], $b['author']);
+ if ($r == 0) return name_compare($a, $b);
+ else return $r;
+ }
+
+ function sort_plugins_by_state()
+ {
+ uasort($this->fs_plugins, 'name_compare');
+
+ $active_plugins = array();
+ $inactive_plugins = array();
+ $not_installed = array();
+
+ foreach($this->fs_plugins as $plugin_id => $plugin)
+ {
+ if (isset($this->db_plugins_by_id[$plugin_id]))
+ {
+ $this->db_plugins_by_id[$plugin_id]['state'] == 'active' ?
+ $active_plugins[$plugin_id] = $plugin : $inactive_plugins[$plugin_id] = $plugin;
+ }
+ else
+ {
+ $not_installed[$plugin_id] = $plugin;
+ }
+ }
+ $this->fs_plugins = $active_plugins + $inactive_plugins + $not_installed;
+ }
+}
+?> \ No newline at end of file